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Central Appalachians

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NameColor on MapEPA Code*
Forested Hills and Mountains69a
Uplands and Valleys of Mixed Land Use69b
Greenbrier Karst69c
Dissected Appalachian Plateau69d
Cumberland Mountain Thrust Block69e

* This code refers to the US EPA's Level 4 ecoregion codes for the continental U.S., see here.

About the Central Appalachians

The Central Appalachians is a region of the Appalachians extending roughly northeast-southwest, from central Pennsylvania barely into Tennessee. The region is largest in eastern Kentucky and southern West Virginia. This region is higher-altitude and has steeper inclines than regions both to the northwest and southeast, and it contains some of the highest elevations in the northern end of the Appalachians, although farther south the Blue Ridge reaches much higher.

This region has a humid continental climate with severe winters and warm to sometimes hot summers. The frost-free period can be as short as 130 days and is usually at longest 180 days. Precipitation varies considerably by altitude, from about 38 inches annually to about 59 inches. The terrain is rugged, consisting of a dissected plateau with numerous long ridges running through it. The ridges are narrow and steep, and the rest of the region is covered by low mountains and high hills, and narrow, curvy valleys.

Originally this region was covered in mixed mesophytic forest, with American chestnut as the dominant plant. Now, dominant trees include chestnut oak, red maple, white oak, black oak, Amercian beech, tulip tree, sugar maple, various ash species, American basswood, buckeye, and eastern hemlock. The highest elevations have some coniferous forest, dominated by red spruce and hemlock.

This area is much less utilized by humans than the surrounding, flatter, lower-elevation areas. Most of the area is still forested, with only small amounts of pasture and dairy farming. Coal mining is common. There are some small cities and large towns, but overall this region is sparsely populated.

To the southeast, this region is bordered by the much lower elevation Ridge and Valley region. To the northwest, it is bordered by the lower and slightly less rugged Western Allegheny Plateau. At its southwestern end, this region borders the Southwestern Appalachians, and at its northern end, the North Central Appalachians.


1. Wiken, E., Griffith, G. "North American Terrestrial Ecoregions - Level III", Commission for Environmental Cooperation, (2011) Web.